Textiles: spinning – twisting – and twining – Apparatus and processes – Covering or wrapping
Patent
1991-10-25
1993-04-13
Hail, III, Joseph J.
Textiles: spinning, twisting, and twining
Apparatus and processes
Covering or wrapping
57295, D02G 302
Patent
active
052011690
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
The present invention relates to a fancy yarn covered with gold or silver foil, and more particularly to a gold or silver yarn or thread for use as a warp or weft yarn for woven fabric, and a method of and an apparatus for manufacturing such a gold or silver yarn.
2. Background Art
It has long been customary to manufacture a gold or silver yarn by covering a narrow piece of cloth with gold or silver foil and twisting the covered piece of cloth. It is also known to manufacture a gold or silver yarn by coating the yarn with a layer of resin mixed with gold or silver powder.
Japanese Laid-Open Patent Publication No. 61-75869 published on Apr. 18, 1986 discloses, as shown FIG. 7 of the accompanying drawings, a transfer roller 26 and a contacting/separating device 25 which are disposed along a yarn 2 from a bobbin 1. When the contacting/separating device 25 is controlled to move in a certain pattern by a controller 41 and a driver 23, the yarn 2 is selectively brought into and out of contact with the transfer roller 26. A liquid 42 composed of an adhesive and metal powder mixed therein and contained in a container 3 is therefore applied at random to the yarn 2 over a desired length. The yarn 2 with the liquid 42 applied thereto is thereafter dried by a heater 12 and wound around a tape-up bobbin 13.
The process of manufacturing a gold or silver yarn by covering a narrow piece of cloth with gold or silver foil and twisting the covered piece of cloth, requires a large amount of foil. Therefore, the gold yarn produced with gold foil applied to the narrow piece of cloth is very expensive. The process also requires a lot of skill in applying the foil to the narrow piece of cloth. Furthermore, it is difficult to produce a thin gold or silver yarn, and hence a woven fabric of such gold or silver yarn for use as a garment.
According to the process of applying resin with mixed metal powder to a yarn, the yarn cannot be given a shiny metallic finish that would otherwise be possible with metallic foil, but only a dull metallic gloss. Therefore, any woven fabric of such yarn is of a low ornamental effect. Another problem is that the yarn is not flexible enough because of the resin layer of certain thickness on the surface of the yarn.
It is an object of the present invention to provide a fancy yarn which has a shiny metallic gloss on its surface and can be used to produce a garment fabric of high ornamental effect, and a method of and an apparatus for manufacturing such a fancy yarn simply and inexpensively.
DISCLOSURE OF THE INVENTION
To give the surface of a yarn a foil gloss, a metallic foil may be wrapped around the surface of the yarn. Since, however, a metal foil has been hammered into a limit thickness, it is technically difficult to cover the yarn with the metallic foil because the metallic foil tends to shrink or curl around a region where it is gripped. It would be possible to wrap a yarn with a long ribbon-shaped foil and cut off gripped ends of the foil. However, larger foil is much more expensive than smaller foil, and it would not be easy to design a wrapping device and adjust the wrapping device according to the thickness of the yarn.
According to the present invention, metallic foil pieces 9 are scattered over and applied to a yarn 2 held under tension, and then the yarn 2 is twisted (see FIG. 1), or a swirling air stream is developed around the yarn (see FIG. 3), thereby wrapping the yarn 2 with the foil pieces 9 applied to the yarn 2.
The yarn 2 to which the foil pieces 9 are to be applied is coated with an adhesive 4 in advance. The adhesive 4 should preferably be flexible enough even when it is in a solid state, so that the flexibility of the yarn 2 will not be impaired by the adhesive 4. For example, the adhesive 4 may be of acrylic resin or urethane resin. Preferably, the adhesive 4 is applied in as thin a layer as possible. If a woven cloth with a high design effect is to be made of the yarn 2, then the adhesive 4 should be applied to local regions of the yarn 2.
To
REFERENCES:
patent: 2007183 (1935-07-01), Dickie et al.
patent: 2058783 (1936-10-01), Franke
patent: 2230271 (1941-02-01), Simpson
LandOfFree
Metallic-foil-covered fancy yarn and method of fan apparatus for does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Metallic-foil-covered fancy yarn and method of fan apparatus for, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metallic-foil-covered fancy yarn and method of fan apparatus for will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1148131